Watch detail



H. E. HYATT;

WATCH DETAIL.

APPLICATION FILED mus. 1918.

1,332,295. Patented Mar. 2, 1920.

avwaml oz JZZTZfyaZ'Z lm/[Mano I l I 7 I 4 attozncu o HENRY E. I-IYATT, F SINGER, LOUISIANA.

WATCH DETAIL.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed January 9, 1918. Serial No. 211,060.

To all whom it may concern Be it known that I, HENRY E. HYATT, a citizen of the United States, residing at Singer, in the parish of Beauregard and State of Louisiana, have invented anew and useful Watch Detail, of which the following is a specification.

It is the object of this invention to provide a novel means for preventing dust from entering the end of a watch pendant, and to improve the construction of the nut against which the stem-controlling spring abuts.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the corn bination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the dawings:

Figure 1 shows in section, a portion of a watch embodying the improvements hereinafter claimed;

Fig. 2 is a perspective view showing the nut which forms an abutment for one end of the stem-spring;

Fig. 3 is a bottom plan of the nut.

The numeral 1 marks a watch case carrying a pendant 2 in which a ring 3 is supported in the usual manner. A crown 4 is provided and is supplied with a recess 5 in which the outer end of the pendant 2 is slidably and rotatably received. A stem 6 is disposed within the pendant 2 and is threaded at its outer end, as shown at 7, the stem being connected in this way with the crown 4. A washer 8, made of felt or other yieldable material, is seated in the recess and surrounds the stem 6. The washer 8 abuts against the end face of the pendant 2 and turns with the stem 6 and the crown 4, the washer fitting closely in the recess 5 and being held by the threads 7 on the stem. If desired, the washer 8 may be held to the crown by a touch of cement. The washer 8 prevents the entrance of dust into the watch case.

A nut 10 is threaded atll into the pendant 2, and aids in supporting the washer 8.

The nut 10 has a central recess 12 in its inner end. Longitudinal openings 14 and a central opening 9 are formed in the nut 10. Pins 15 are friotionally held in the openings 1.4. The stem 6 is mounted to slide and to rotate in the opening 9. Adjacent its inner end the stem 6 is provided with a head 16. A compression spring 17 in the pendant 2 surrounds a portion of the stem 6 and bears at its ends against the nut 10 and against the head 16, one end of the spring being received in the recess 12. The spring 17 serves to hold the washer 8 seated on the end of the pendant 2 and on the nut 10.

In the ordinary.construction, the stem 6 rotates within such a member as the washer 8. As a consequence, the stem soon forms an enlarged hole in the washer through which dust enters. It is to be observed that in this device the washer 8 is held securely on the stem 6 and in abutment with the crown 4, so as to rotate with these elements. The stem 6, therefore, never wears an enlarged hole in the central portion of the washer 8.

The openings 14 in the nut 10 are adapted to receive the fingers of a spanner wrench (not shown) whereby the nut may be rotated. The fingers of the spanner wrench are pressed against the pins 15 which, being frictionally held in place, slide inwardly and permit the fingers to enter the openings 14. In this way, the nut 10 may be threaded out of the pendant 2. In a similar way, the nut may be threaded into the pendant, the pins 15 subsequently being inserted into the openings 14, as shown in the drawings. Since the openings 14 are closed by the pins 15, dust cannot find its way into the watch through the openings.

Having thus described what is claimed is:

A watch comprising a pendant; a nut threaded into the pendant and having wrench-receiving openings, the outer end of the nut being flush with the outer end of the pendant; pins frictionally held in the openings and having their outer ends flush with the outer surface of the nut; a crown having a recess receiving the outer end of the pendant, the crown being rotatable on the pendant; a stem journaled in the nut and carried by the crown, the stem being provided adjacent to its inner end with a the invention,

head; a yieldable washer in the recess and fixed for rotation with the crown and the stem in contact With the outer end of the In testimony that I claim the foregoing pendant, the outer end of the nut and the as my own, I havehereto affixed my signaouter ends of the pins; and a spring interture in the presence of'two Witnesses.

posed between the head and the nut and con HENRY E. HYATT. stituting means for maintaining the Washer Witnesses: seated on the pendant, on the-nut and on the H. H. HYATT,

outer ends of the pins. IVY C. HOPKINS. 

